require 'spec_helper'

describe Locomotive::Steam::Liquid::Filters::Date do

  include Locomotive::Steam::Liquid::Filters::Date

  let(:timezone)  { 'Paris' }
  let(:date)      { Date.parse('2007/06/29') }
  let(:date_time) { Time.zone.parse('2007-06-29 21:35:00') }

  let(:registers) { { site: instance_double('Site', timezone: timezone) } }
  let(:assigns)   { { 'today' => date } }
  let(:context)   { instance_double('Context', assigns: assigns, registers: registers) }

  before(:each) { Time.zone = timezone; @context = context }

  describe '#parse_date' do

    let(:format) { nil }
    let(:input)  { '2007-06-29' }

    subject { parse_date(input, format) }

    it { is_expected.to eq date }

    describe 'with a specified format' do

      let(:format) { '%m/%d/%Y' }
      let(:input) { '06/29/2007' }

      it { is_expected.to eq date }

      describe 'but incorrect' do

        let(:format) { '%Y-%d-%m' }

        it { is_expected.to eq '' }

      end

    end

  end

  describe '#parse_date_time' do

    let(:format) { nil }
    let(:input)  { '2007-06-29 21:35:00' }

    subject { parse_date_time(input, format) }

    it { is_expected.to eq date_time }

    describe 'with a specified format' do

      let(:format) { '%m/%d/%Y %H:%M' }
      let(:input) { '06/29/2007 21:35' }

      it { is_expected.to eq date_time }

      describe 'but incorrect' do

        let(:format) { '%Y-%d-%m %H:%M' }

        it { is_expected.to eq '' }

      end

    end

  end

  describe '#distance_of_time_in_words' do

    before(:each) do
      datetime = Time.zone.parse('2012/11/25 00:00:00')
      allow(Time.zone).to receive(:now) { datetime }
    end

    it 'prints the distance of time in words from a string' do
      expect(distance_of_time_in_words('2007/06/29 00:00:00')).to eq('over 5 years')
    end

    it 'prints the distance of time in words from a date' do
      expect(distance_of_time_in_words(date)).to eq('over 5 years')
    end

    it 'prints the distance of time in words from a time' do
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:00:01', true)).to eq('less than 5 seconds')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:00:05', true)).to eq('less than 10 seconds')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:00:10', true)).to eq('less than 20 seconds')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:00:20', true)).to eq('half a minute')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:00:30', true)).to eq('half a minute')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:00:40', true)).to eq('less than a minute')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:01:00', true)).to eq('1 minute')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:00:01')).to eq('less than a minute')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:02:00')).to eq('2 minutes')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 00:45:00')).to eq('about 1 hour')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/29 01:32:00')).to eq('about 2 hours')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/06/30 00:00:00')).to eq('1 day')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/07/01 00:00:00')).to eq('2 days')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/08/01 00:00:00')).to eq('about 1 month')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2007/10/01 00:00:00')).to eq('3 months')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2008/06/29 00:00:00')).to eq('about 1 year')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2008/09/29 00:00:00')).to eq('over 1 year')
      expect(distance_of_time_in_words('2007/06/29 00:00:00', '2009/03/29 00:00:00')).to eq('almost 2 years')
    end

    it 'prints the distance of time in words with a different from_time variable' do
      expect(distance_of_time_in_words(date, '2010/11/25 00:00:00')).to eq('over 3 years')
    end

  end

  describe '#localized_date' do

    it 'prints an empty string it is nil or empty' do
      expect(localized_date(nil)).to eq('')
      expect(localized_date('')).to eq('')
    end

    it 'prints a date from a string' do
      expect(localized_date('2007-06-29')).to eq('2007-06-29')
    end

    it 'prints a date from a not-formated string' do
      expect(localized_date('29/06/2007')).to eq('2007-06-29')
    end

    it 'prints a date' do
      expect(localized_date(date)).to eq('2007-06-29')
    end

    it 'prints a date with a custom format' do
      expect(localized_date(date, '%d/%m/%Y')).to eq('29/06/2007')
    end

    it 'prints a date depending on the locale' do
      I18n.locale = 'fr'
      expect(localized_date(date)).to eq('29/06/2007')
      I18n.locale = 'en'
    end

    it 'prints a date when forcing the locale' do
      expect(localized_date(date, '%A %d %B %Y', 'fr')).to eq('vendredi 29 juin 2007')
    end

    it 'has an alias for the localized_date filter: format_date' do
      expect(format_date(date)).to eq('2007-06-29')
    end

    it 'prints a date within a template (from the documentation)' do
      template  = ::Liquid::Template.parse("{{ today | localized_date: '%d %B', 'fr' }}")
      context   = ::Liquid::Context.new({}, assigns, registers)
      expect(template.render(context)).to eq('29 juin')
    end

  end

  describe '#end_of_year' do

    let(:input) { date }
    subject { end_of_year(input) }

    describe 'with a date' do
      it { is_expected.to eq Date.parse('2007/12/31') }
    end

    describe 'with a datetime' do
      let(:input) { date_time }
      it { is_expected.to eq Time.zone.parse('2007/12/31 23:59:59.999999999') }
    end

    describe 'with a string' do
      let(:input) { '2007/06/29' }
      it { is_expected.to eq Time.zone.parse('2007/12/31 23:59:59.999999999') }
    end

    describe 'with a bad input' do
      let(:input) { 'not a date' }
      it { is_expected.to eq '' }
    end
  end

  describe '#beginning_of_year' do

    let(:input) { date }
    subject { beginning_of_year(input) }

    describe 'with a date' do
      it { is_expected.to eq Date.parse('2007/01/01') }
    end

    describe 'with a datetime' do
      let(:input) { date_time }
      it { is_expected.to eq Time.zone.parse('2007/01/01 00:00:00.000000000') }
    end

    describe 'with a string' do
      let(:input) { '2007/06/29' }
      it { is_expected.to eq Time.zone.parse('2007/01/01 00:00:00.000000000') }
    end

    describe 'with a bad input' do
      let(:input) { 'not a date' }
      it { is_expected.to eq '' }
    end
  end

  describe '#end_of_month' do

    let(:input) { date }
    subject { end_of_month(input) }

    describe 'with a date' do
      it { is_expected.to eq Date.parse('2007/06/30') }
    end

    describe 'with a datetime' do
      let(:input) { date_time }
      it { is_expected.to eq Time.zone.parse('2007/06/30 23:59:59.999999999') }
    end

    describe 'with a string' do
      let(:input) { '2007/06/29' }
      it { is_expected.to eq Time.zone.parse('2007/06/30 23:59:59.999999999') }
    end

    describe 'with a bad input' do
      let(:input) { 'not a date' }
      it { is_expected.to eq '' }
    end
  end

  describe '#beginning_of_month' do

    let(:input) { date }
    subject { beginning_of_month(input) }

    describe 'with a date' do
      it { is_expected.to eq Date.parse('2007/06/01') }
    end

    describe 'with a datetime' do
      let(:input) { date_time }
      it { is_expected.to eq Time.zone.parse('2007/06/01 00:00:00.000000000') }
    end

    describe 'with a string' do
      let(:input) { '2007/06/29' }
      it { is_expected.to eq Time.zone.parse('2007/06/01 00:00:00.000000000') }
    end

    describe 'with a bad input' do
      let(:input) { 'not a date' }
      it { is_expected.to eq '' }
    end
  end

  describe '#end_of_week' do

    let(:input) { date }
    subject { end_of_week(input) }

    describe 'with a date' do
      it { is_expected.to eq Date.parse('2007/07/01') }
    end

    describe 'with a datetime' do
      let(:input) { date_time }
      it { is_expected.to eq Time.zone.parse('2007/07/01 23:59:59.999999999') }
    end

    describe 'with a string' do
      let(:input) { '2007/06/29' }
      it { is_expected.to eq Time.zone.parse('2007/07/01 23:59:59.999999999') }
    end

    describe 'with a bad input' do
      let(:input) { 'not a date' }
      it { is_expected.to eq '' }
    end
  end

  describe '#beginning_of_week' do

    let(:input) { date }
    subject { beginning_of_week(input) }

    describe 'with a date' do
      it { is_expected.to eq Date.parse('2007/06/25') }
    end

    describe 'with a datetime' do
      let(:input) { date_time }
      it { is_expected.to eq Time.zone.parse('2007/06/25 00:00:00.000000000') }
    end

    describe 'with a string' do
      let(:input) { '2007/06/29' }
      it { is_expected.to eq Time.zone.parse('2007/06/25 00:00:00.000000000') }
    end

    describe 'with a bad input' do
      let(:input) { 'not a date' }
      it { is_expected.to eq '' }
    end
  end

  describe '#end_of_day' do

    let(:input) { date }
    subject { end_of_day(input) }

    describe 'with a date' do
      it { is_expected.to eq Time.zone.parse('2007/06/29 23:59:59.999999999') }
    end

    describe 'with a datetime' do
      let(:input) { date_time }
      it { is_expected.to eq Time.zone.parse('2007/06/29 23:59:59.999999999') }
    end

    describe 'with a string' do
      let(:input) { '2007/06/29' }
      it { is_expected.to eq Time.zone.parse('2007/06/29 23:59:59.999999999') }
    end

    describe 'with a bad input' do
      let(:input) { 'not a date' }
      it { is_expected.to eq '' }
    end
  end

  describe '#beginning_of_day' do

    let(:input) { date }
    subject { beginning_of_day(input) }

    describe 'with a date' do
      it { is_expected.to eq Time.zone.parse('2007/06/29 00:00:00.000000000') }
    end

    describe 'with a datetime' do
      let(:input) { date_time }
      it { is_expected.to eq Time.zone.parse('2007/06/29 00:00:00.000000000') }
    end

    describe 'with a string' do
      let(:input) { '2007/06/29' }
      it { is_expected.to eq Time.zone.parse('2007/06/29 00:00:00.000000000') }
    end

    describe 'with a bad input' do
      let(:input) { 'not a date' }
      it { is_expected.to eq '' }
    end
  end

  describe '#adjust_date' do

    let(:input) { date }
    let(:adjustment) { 1 }
    let(:unit) { 'month' }
    subject { adjust_date(input, adjustment, unit) }

    it { is_expected.to eq Date.parse('2007/07/29') }

    context 'unit is not a valid value (month, year, day, etc.)' do

      let(:unit) { 'foo' }

      it { is_expected.to eq Date.parse('2007/06/29') }

    end

  end

end